construct failure
Mechanical breakdown of the bone-implant system resulting in loss of fracture stability or fixation integrity.
Full Definition
Construct failure refers to the mechanical breakdown of the combined bone-implant system, which can occur through implant breakage, bone failure around the implant, or loss of implant-bone interface integrity. This complication represents a significant setback in fracture treatment and often requires revision surgery. Construct failure can result from various factors including inadequate initial fixation, premature loading, poor bone quality, infection, or implant fatigue. Understanding the mechanisms of construct failure is essential for prevention through proper surgical technique, appropriate implant selection, and patient compliance with weight-bearing restrictions.
Usage
Usage note: Specify the mode of failure (implant breakage, bone failure, interface failure) when documenting construct failures.
In Context
- "Construct failure occurred six weeks post-operatively due to premature full weight-bearing." — Complication report
- "Prevention of construct failure requires careful attention to bone quality and implant selection." — Surgical principles textbook